Touchscreen computer



FIG. 1 is a front perspective view of the touchscreen computer;

FIGS. 2 and 3 are respectively front and back views thereof;

FIGS. 4 and 5 are alternate side views thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a touchscreen computer, as shown and described. 